[PATCH v4 4/7] pinctrl: berlin: add the BG2CD pinctrl driver
Sebastian Hesselbarth
sebastian.hesselbarth at gmail.com
Mon May 19 10:36:32 PDT 2014
From: Antoine Tenart <antoine.tenart at free-electrons.com>
Add the pin-controller driver for the Berlin BG2Q SoC, with definition
of its groups and functions. Pin control registers are part of chip/
system control registers, which will be represented by a single node.
Until a proper driver for the chip/system control is available,
register the corresponding regmap in pinctrl driver probe.
Signed-off-by: Antoine Tenart <antoine.tenart at free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth at gmail.com>
---
Changelog:
v3->v4:
- change compatible to the settled name of the chip/system control
nodes and register a regmap for the core driver instead.
Cc: Linus Walleij <linus.walleij at linaro.org>
Cc: Antoine Tenart <antoine.tenart at free-electrons.com>
Cc: Alexandre Belloni <alexandre.belloni at free-electrons.com>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Cc: zmxu at marvell.com
Cc: jszhang at marvell.com
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
---
drivers/pinctrl/berlin/Kconfig | 4 +
drivers/pinctrl/berlin/Makefile | 1 +
drivers/pinctrl/berlin/berlin-bg2cd.c | 217 ++++++++++++++++++++++++++++++++++
3 files changed, 222 insertions(+)
create mode 100644 drivers/pinctrl/berlin/berlin-bg2cd.c
diff --git a/drivers/pinctrl/berlin/Kconfig b/drivers/pinctrl/berlin/Kconfig
index 381f46347c51..b18322bc7bf9 100644
--- a/drivers/pinctrl/berlin/Kconfig
+++ b/drivers/pinctrl/berlin/Kconfig
@@ -9,6 +9,10 @@ config PINCTRL_BERLIN_BG2
bool
select PINCTRL_BERLIN
+config PINCTRL_BERLIN_BG2CD
+ bool
+ select PINCTRL_BERLIN
+
config PINCTRL_BERLIN_BG2Q
bool
select PINCTRL_BERLIN
diff --git a/drivers/pinctrl/berlin/Makefile b/drivers/pinctrl/berlin/Makefile
index e37e4e7a8838..deb0c6baf316 100644
--- a/drivers/pinctrl/berlin/Makefile
+++ b/drivers/pinctrl/berlin/Makefile
@@ -1,3 +1,4 @@
obj-$(CONFIG_PINCTRL_BERLIN) += berlin.o
obj-$(CONFIG_PINCTRL_BERLIN_BG2) += berlin-bg2.o
+obj-$(CONFIG_PINCTRL_BERLIN_BG2CD) += berlin-bg2cd.o
obj-$(CONFIG_PINCTRL_BERLIN_BG2Q) += berlin-bg2q.o
diff --git a/drivers/pinctrl/berlin/berlin-bg2cd.c b/drivers/pinctrl/berlin/berlin-bg2cd.c
new file mode 100644
index 000000000000..1f08ec2d8a57
--- /dev/null
+++ b/drivers/pinctrl/berlin/berlin-bg2cd.c
@@ -0,0 +1,217 @@
+/*
+ * Marvell Berlin BG2CD pinctrl driver.
+ *
+ * Copyright (C) 2014 Marvell Technology Group Ltd.
+ *
+ * Antoine Ténart <antoine.tenart at free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include "berlin.h"
+
+static const struct berlin_desc_group berlin2cd_soc_pinctrl_groups[] = {
+ /* G */
+ BERLIN_PINCTRL_GROUP("G0", 0x00, 0x1, 0x00,
+ BERLIN_PINCTRL_FUNCTION(0x0, "jtag"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "led"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "pwm")),
+ BERLIN_PINCTRL_GROUP("G1", 0x00, 0x2, 0x01,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G2", 0x00, 0x2, 0x02,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "fe"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "pll"),
+ BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G3", 0x00, 0x2, 0x04,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "twsi2"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "pll"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "fe"),
+ BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G4", 0x00, 0x2, 0x06,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "twsi3"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "pll"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
+ BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G5", 0x00, 0x3, 0x08,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "twsi3"),
+ BERLIN_PINCTRL_FUNCTION(0x3, "arc"),
+ BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
+ BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G6", 0x00, 0x2, 0x0b,
+ BERLIN_PINCTRL_FUNCTION(0x0, "uart0"), /* RX/TX */
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G7", 0x00, 0x3, 0x0d,
+ BERLIN_PINCTRL_FUNCTION(0x0, "eddc"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "twsi1"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "gpio")),
+ BERLIN_PINCTRL_GROUP("G8", 0x00, 0x3, 0x10,
+ BERLIN_PINCTRL_FUNCTION(0x0, "ss0"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G9", 0x00, 0x3, 0x13,
+ BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "twsi0")),
+ BERLIN_PINCTRL_GROUP("G10", 0x00, 0x2, 0x16,
+ BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G11", 0x00, 0x2, 0x18,
+ BERLIN_PINCTRL_FUNCTION(0x0, "spi1"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G12", 0x00, 0x3, 0x1a,
+ BERLIN_PINCTRL_FUNCTION(0x0, "usb1"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G13", 0x04, 0x3, 0x00,
+ BERLIN_PINCTRL_FUNCTION(0x0, "nand"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "usb0_dbg"),
+ BERLIN_PINCTRL_FUNCTION(0x2, "usb1_dbg")),
+ BERLIN_PINCTRL_GROUP("G14", 0x04, 0x1, 0x03,
+ BERLIN_PINCTRL_FUNCTION(0x0, "nand"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G15", 0x04, 0x2, 0x04,
+ BERLIN_PINCTRL_FUNCTION(0x0, "jtag"),
+ BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
+ BERLIN_PINCTRL_GROUP("G16", 0x04, 0x3, 0x06,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G17", 0x04, 0x3, 0x09,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G18", 0x04, 0x1, 0x0c,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G19", 0x04, 0x1, 0x0d,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G20", 0x04, 0x1, 0x0e,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G21", 0x04, 0x3, 0x0f,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G22", 0x04, 0x3, 0x12,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G23", 0x04, 0x3, 0x15,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G24", 0x04, 0x2, 0x18,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G25", 0x04, 0x2, 0x1a,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G26", 0x04, 0x1, 0x1c,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G27", 0x04, 0x1, 0x1d,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("G28", 0x04, 0x2, 0x1e,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+};
+
+static const struct berlin_desc_group berlin2cd_sysmgr_pinctrl_groups[] = {
+ /* GSM */
+ BERLIN_PINCTRL_GROUP("GSM0", 0x40, 0x2, 0x00,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM1", 0x40, 0x2, 0x02,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM2", 0x40, 0x2, 0x04,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM3", 0x40, 0x2, 0x06,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM4", 0x40, 0x2, 0x08,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM5", 0x40, 0x2, 0x0a,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM6", 0x40, 0x2, 0x0c,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM7", 0x40, 0x1, 0x0e,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM8", 0x40, 0x1, 0x0f,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM9", 0x40, 0x1, 0x10,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM10", 0x40, 0x1, 0x11,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+ BERLIN_PINCTRL_GROUP("GSM11", 0x40, 0x1, 0x12,
+ BERLIN_PINCTRL_FUNCTION_UNKNOWN),
+};
+
+static const struct berlin_pinctrl_desc berlin2cd_soc_pinctrl_data = {
+ .groups = berlin2cd_soc_pinctrl_groups,
+ .ngroups = ARRAY_SIZE(berlin2cd_soc_pinctrl_groups),
+};
+
+static const struct berlin_pinctrl_desc berlin2cd_sysmgr_pinctrl_data = {
+ .groups = berlin2cd_sysmgr_pinctrl_groups,
+ .ngroups = ARRAY_SIZE(berlin2cd_sysmgr_pinctrl_groups),
+};
+
+static const struct of_device_id berlin2cd_pinctrl_match[] = {
+ {
+ .compatible = "marvell,berlin2cd-chip-ctrl",
+ .data = &berlin2cd_soc_pinctrl_data
+ },
+ {
+ .compatible = "marvell,berlin2cd-system-ctrl",
+ .data = &berlin2cd_sysmgr_pinctrl_data
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, berlin2cd_pinctrl_match);
+
+static int berlin2cd_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match =
+ of_match_device(berlin2cd_pinctrl_match, &pdev->dev);
+ struct regmap_config *rmconfig;
+ struct regmap *regmap;
+ struct resource *res;
+ void __iomem *base;
+
+ rmconfig = devm_kzalloc(&pdev->dev, sizeof(*rmconfig), GFP_KERNEL);
+ if (!rmconfig)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!base)
+ return -EADDRNOTAVAIL;
+
+ rmconfig->reg_bits = 32,
+ rmconfig->val_bits = 32,
+ rmconfig->reg_stride = 4,
+ rmconfig->max_register = resource_size(res);
+
+ regmap = devm_regmap_init_mmio(&pdev->dev, base, rmconfig);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return berlin_pinctrl_probe(pdev, match->data);
+}
+
+static struct platform_driver berlin2cd_pinctrl_driver = {
+ .probe = berlin2cd_pinctrl_probe,
+ .driver = {
+ .name = "berlin-bg2cd-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = berlin2cd_pinctrl_match,
+ },
+};
+module_platform_driver(berlin2cd_pinctrl_driver);
+
+MODULE_AUTHOR("Antoine Ténart <antoine.tenart at free-electrons.com>");
+MODULE_DESCRIPTION("Marvell Berlin BG2CD pinctrl driver");
+MODULE_LICENSE("GPL");
--
1.9.1
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